Nebulizer.



B. E. BAKER.

NEBULIZER.

' APPLICATION FILED 11.9. 1909.

9503380 Patented Mar. 1, 1910. 2 SHBETS-SHEET 1.

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BY flEBakeh M W7 rat ATTORNEY- ANDRflh a. unmm co. Pnoro-umdomvlliws-WASHINGTON. 6.8

B. E. BAKER.

NEBULIZER.

APPLmA rIw FILED JAN. 9, 190a.

Patented Mar. 1, 1910.

2 SHEETS-SHEET 2.

AZ 4/ INVENTOR.

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srxrns r BURTON E. BAKER, 0F HARTFORD, CONNECTICUT, ASSIGNOR TO THEBAKER ELECTRIC COMPANY, OF HARTFORD, CONNECTICUT, A. CORPORATION OFCONNECTICUT.

' NEBULIZER.

Specification of Letters Patent.

Patented Mar. 1, 191C.

Application filed. January 9, 1908. Serial No. 410,005.

To all whom it may concern:

Be it known that I, BURTON E. BAKER, a citizen of the United States, anda resident of Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inNebulizers, of which the following is a specification.

The object of the invention is to produce a device of the classspecified having features of novelty and advantage, particularly in thecompactness and simplicity of its construction, and cleanliness.

In the drawingsFigure 1 is a vertical section taken on the line 1--1 ofFig. 2

= looking in the direction of the arrows. Fig.

2 is a plan view of the device with the top of the casing removed. Figs.3, 4 and 5 are details in section on line 3 of Fig. 1 showing theconstruction and diiferent positions of the valve. Fig. 6 is a sectionalview of the head on the line 6-6 of Fig. 2.

Referring to the drawings a denotes th standard or casing which is inthe form of a hollow shell having a removable top a. Vertically arrangedwithin this standard is an air supply pipe 6 leading from a compressedair reservoir. To the top of this pipe is secured what I call the head 1having a distributing chamber 2 in its upper part with a passage leadingto it from the air supply pipe Z) so that the compressed air from thetank passes directly into said distributing chamber 2. A reducing valvemay be inserted in the pipe 6 between the air reservoir and the head toreduce the air pressure in the distributin chamber if desired. A gage 1"is secured to a pipe leading from the distributing chamber. In the lowerpart of the head is an annular mixing chamber 3, from which a passage 4(Fig. 6) leads to a common treatment tube valve or outlet 5 (Fig. 2

Arranged ra ially about the horizontal diameter of the upper part of thestandard are plugs 10 having downturned internally threaded ends 10 intowhich the medicament receptacles 10 are secured. Any number of thesereceptacles may be utilized up to the limit of the device; six are shownin the drawings. These plugs are provided with two passages 11, 12, thefirst being connected by a pipe 11 to the distributing chamber, therebeing a nebulizer tube 11 secured in the plug at the other end of thepassage 11 and extending down into the 1 receptacle, its lower end beingimmersed in the liquid therein. The pipe 11 passage 11 and tube 11constitute the inlet for the compressed air. The second passage 12 iscon- 1igected by the pipe 12 to the mixing cham- The plugs 10 areprovided with triple-acting valves 20. In one position the solid wall ofthe valve cuts off the air entirely; in the second position a return-way2O connects the passages 11 and 12 on the head side of the valve so thatthe air will pass from the distributing chamber 2 through the pipe 11,passage 11, return-way 20 passage 12, pipe 12*, mixing chamber 3,passage 4: to the treatment tube outlet 5, flushing and clea11- ing themixing chamber and appurtenant parts. The third position of the valvebrings the ports 21, 22, into alinement with the passages 11, 12,permitting air to enter the bottle through the passage 11 and nebulizertube 11 and the nebula to pass out through the passage 12, pipe 12, tothe mixing chamber 3, thence through the passage 4 to the treatment tubeoutlet 5.

It is to be noted that all receptacles are supplied with air from acommon distributing chamber and that the nebula from all receptaclesgoes into the common mixing chamber, thus the medicainents may beadministered separately or any number may be combined and mixed in thechamber 3 before they are administered.

It is to be noted that the return pipes 12 which conductthe nebula intothe mixing chamber are arranged radially about the head so that thenebula as it passes into the mixing chamber is projected against thewall of the chamber, which action tends to break up any particles ofliquid that may come through with the nebula and spreads the nebula tocompletely fill the chamber. In a case where two or more medicaments areto be administered together the above described arrangement effects athorough mixing of the different nebulae before they go out through thepassage a to the treatment tube outlet 5. It will be further noted thatin turning the valves from closed to open position, or vice versa, theflushing of the mixing chamber and pipes appurtenant thereto isaccomplished and in the usual operation of the de vice the mixingchamber and appurtenant parts are necessarily flushed and cleansed byblowing out any medicament which may be left in the parts before a newmedicament can be passed through.

y my invention a compact device is provided which is convenient ofmanipulation, simple in its construction and effective and cleanly inits operation.

I claim l. A nebulizer comprising a hollow supporting standard, a headlocated therein near the top thereof and embodying a dis tributingchamber in the upper port-i011 thereof, a centrally-disposed passagecommunicating with the distributing chamber, an annular mixing chamberin the lower portion of the head surrounding said passage, an air supplypipe extending in said standard, connected to the head and opening intosaid passage, a plurality of laterally-extending angle-shaped plugssupported by and extending into the standard, each of said plugs formedwith a pair of passages, a triple-acting valve mounted in each of theplugs and controlling the passages of its respective plug, a receptaclesupported by the depending portions of each of said plugs, a nebulizingtube connected to the depending portion of each of the plugs, openinginto one of the passages of the plug and extending in and communicatingwith the receptacle carried by the depending portion of the plug, a pipeconnection between one of the passages of each of the plugs and themixing chamber, a pipe connection between the other passage of each ofthe plugs and distributing chamber, said pipe connections secured to theinner end of said angle-shapedplugs, said mixing chamber having itsbottom provided with an outlet, a discharge pipe communicating with saidoutlet and projecting from and supported by the standard.

2. A nebulizer comprising a hollow supporting standard, a head locatedtherein near the top thereof and embodying a distributing chamber in theupper portion thereof, a centrally-disposed passage communicating withthe distributing chamber, an annular mixing chamber in the lower portionof the head surrounding said passage, an air supply pipe extending insaid standard, connected to the head and opening into said passage, aplurality of laterally-extending angle-shaped plugs supported by andextending into the standard, each of said plugs formed with a pair ofpassages, a triple-acting valve mounted in each of the plugs andcontrolling the passages of its respective plug, a receptacle supportedby the depending portions of each of said plugs, a nebulizing tubeconnected to the depending portion of each of the plugs, opening intoone of the passages of the plug and extending in and communicating withthe receptacle carried by the depending portion of the plug, a pipeconnection between one of the passages of each of the plugs and themixing chamber, a pipe connection between the other passage of each ofthe plugs and distributing chamber, said pipe connections secured to theinner ends of said angle-shaped plugs, said mixing chamber having itsbottom provided with an outlet, a discharge pipe communicating with saidoutlet and projecting from and supported by the standard, the passagesin each of said plugs arranged in parallelism with respect to eachother.

3. A nebulizer comprising a hollow porting standard, a head locatedtherein the top thereof and embodying ing chamber in the upper portionthereof, a centrally-disposed passage eommunirating with thedistributing chamber, an annular mixing chamber in the lower portion ofthe head surrounding said passage, an air supply pipe extending in saidstandard, connected to the head and opening into said passage, aplurality of laterally-extending angle-shaped plugs supported by andextending into the standard, each of said plugs formed with a pair ofpassages, a tripleacting valve mounted in each of the plugs andcontrolling the passage of its respective plug, a receptacle supportedby the depending portions of each of said plugs, a nebulizing tubeconnected to the depending portion of each of the plugs, opening intoone of the passages of the plug and extending in and communicating withthe receptacle carried by the depending portion of the plug, a pipeconnection between one of the passages of each of the plugs and themixing chamber, a pipe connection between the other passage of each ofthe plugs and distributing chamber, said pipe connections secured to theinner ends of said angle-shaped plugs, said mixing chamber having itsbottom provided with an outlet, a discharge pipe communicating with saidoutlet and projecting from and supported by the standard, said headprovided with a tubular extension pro jecting from the top of thestandard, and constituting a pipe, and a gage secured to said pipe.

4. A nebulizer comprising a hollow standard, a head located therein nearthe top thereof and embodying a distributing chamher in the upperportion thereof, a centrallydisposed passage communicating with thedistributing chamber, an annular mixing chamber in the lower portion ofthe head surrounding said passage, an air supply pipe extending in saidstandard, and opening into said passage, a plurality oflaterally-extending angle-shaped plugs supported by and extending intothe standard, each of said plugs formed with a pair of pas sages, atriple-acting valve mounted in each of the plugs and controlling thepassage of supnear a distributits respective plug, a receptaclesupported by ,c

the depending portions of each of said plugs, a nebulizing tubeconnected to the depending portion of each of the plugs, opening intoone of the passages of the plug and extending in. and communicating Withthe receptacle carried by the depending portion of the plug, a pipeconnection between one of the passages of each of the plugs and themixing chamber, a pipe connection between the other passage of each ofthe plugs and distributing chamber, said mixing chamber having itsbottom provided with an outlet, a discharge pipe communicating With saidoutlet and projecting from and supported by the standard, said headprovided With a tubular extension projecting from the top of thestandard, and constituting a pipe, and a gage secured to said pipe, thepassages in each of said plugs arranged in parallelism With respect toeach other, and said pipe connections between the mixing anddistributing chambers and said passages Wholly arranged Within thestandard.

BURTON E. BAKER.

H. E. HART.

